Stay in good shape. Stay in good shape, core exercises, bend your knees, use anti-inflammatory medications to minimize pain. There is no medication or supplement one can take to stop or reverse disc degeneration so concentrate on managing your spine with good body mechanics.
If in no pain forget. About them. Otherwise, exercise regularly, keep trim and don't smoke. You can use otc medication if no medical reasons that prevent you from using them. A back support can sometimes help as well as heat application, massage, avoiding prolonged or awkward positions.